Prime Minister Takashi proposed a “joint stockpiling cooperation concept” to link critical-mineral reserves among G7 countries during his first summit as leader [1].
The proposal aims to secure the supply chains of rare earths and other essential materials against geopolitical shocks. By coordinating stockpiles across the G7, member nations intend to reduce individual vulnerability to resource weaponization, or sudden trade disruptions.
Takashi said the Hormuz crisis demonstrated the importance of stockpiling essential materials [1]. He said that Japan is currently the only G7 country with a national stockpile system for rare earths and other critical minerals [1].
This initiative is part of a broader effort to project unity and leadership within the international community. Takashi said he wants to show a posture where the G7 works in coordination and solidarity to lead the response to challenges facing the international society [2].
The proposal focuses on creating a framework for mutual cooperation, ensuring that member states can support one another during shortages. This would shift the current model from isolated national reserves toward a networked system of shared security [1].
Japan's existing infrastructure for critical minerals serves as the blueprint for this cooperation. The Prime Minister's push for a joint system suggests a strategy to export Japan's resource security model to its closest allies to stabilize global markets [1].
“Japan is the only G7 country with a national stockpile system for rare earths and other critical minerals”
This proposal signals a shift in G7 strategy from diversifying supply sources to actively managing collective reserves. By leveraging Japan's existing stockpile system, the G7 aims to create a strategic buffer that prevents any single member from being coerced by mineral-rich nations during diplomatic or military crises.
